The Bannockburn, Ill., outsourcing company said it will close in Charlotte on May 9.

APAC says 15 full-time workers and 224 temporary employees will be losing their jobs. Company officials would not talk about the filing with the Commerce Department, which is required of businesses implementing large layoffs. No reason was given for the shutdown.

The company said employees were given a 60-day notice.

APAC had said last year it planned to hire hundreds of workers in Charlotte. The company provides customer service functions and handles sales calls for the health insurance industry.

The Obama administration will unveil a major climate change plan Monday aimed at a large reduction in greenhouse gas emissions from the nation's coal-burning power plants, a senior administration official told CNN.